login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A309422
Numbers k such that 7^k + k^7 is prime.
1
54, 3076, 11796
(
list
;
graph
;
refs
;
listen
;
history
;
text
;
internal format
)
OFFSET
1,1
COMMENTS
a(4) > 110000.
LINKS
Table of n, a(n) for n=1..3.
CROSSREFS
Cf.
A001596
,
A114974
,
A309421
.
Sequence in context:
A189200
A042405
A187304
*
A212705
A046199
A245831
Adjacent sequences:
A309419
A309420
A309421
*
A309423
A309424
A309425
KEYWORD
nonn
,
bref
,
more
,
hard
AUTHOR
Hugo Pfoertner
, Jul 30 2019
STATUS
approved
Lookup
|
Welcome
|
Wiki
|
Register
|
Music
|
Plot 2
|
Demos
|
Index
|
Browse
|
WebCam
Contribute new seq. or comment
|
Format
|
Style Sheet
|
Transforms
|
Superseeker
|
Recents
The OEIS Community
| Maintained by
The OEIS Foundation Inc.
License Agreements, Terms of Use, Privacy Policy.
.
Last modified September 18 13:18 EDT 2024. Contains 376000 sequences. (Running on oeis4.)